Lori McNeil was the defending champion but lost in the second round to Laura Gildemeister.

Zina Garrison won in the final 6–0, 6–1 against Pam Shriver.

A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.

	First round							Second round							Quarterfinals							Semifinals							Final
	1	Z Garrison	6	6
		L Albano	1	1				1	Z Garrison	6	6
		J Santrock	0	3					M McGrath	4	0
		M McGrath	6	6											1	Z Garrison	6	6
		M Louie-Harper	6	4	6											M Jaggard	4	1
		M Javer	3	6	3				M Louie-Harper	3	4
		M Jaggard	6	6					M Jaggard	6	6
	5	A Frazier	1	2																		1	Z Garrison	6	6
	3	L McNeil	6	7																		8	G Fernández	4	3
		W White	4	5				3	L McNeil	5	2
		M L Daniels	3	6	3				L Gildemeister	7	6
		L Gildemeister	6	2	6											L Gildemeister	3	3
	Q	A Ivan	6	6											8	G Fernández	6	6
		D Graham	4	4				Q	A Ivan	1	2
		J Richardson	6	1	4			8	G Fernández	6	6
	8	G Fernández	3	6	6																								1	Zina Garrison	6	6
	6	R Fairbank	6	6																									2	Pam Shriver	0	1
		K Adams	1	4				6	R Fairbank	7	6
		E Smylie	7	6	7				E Smylie	6	3
		R White	6	7	5										6	R Fairbank	7	6
		E deLone	0	1												H Na	6	4
	Q	R Field	6	6				Q	R Field	1	4
		H Na	3	7	6				H Na	6	6
	4	P Fendick	6	5	1																	6	R Fairbank	6	3	6
	7	G Magers	6	7																		2	P Shriver	3	6	7
		L-A Eldredge	2	5				7	G Magers	3	6
		K Kessaris	3	6	5				J Hetherington	6	7
		J Hetherington	6	2	7											J Hetherington	4	6	2
	Q	A Aallonen	7	7											2	P Shriver	6	3	6
	Q	L Antonoplis	6	5				Q	A Aallonen	2	2
		A Henricksson	3	2				2	P Shriver	6	6
	2	P Shriver	6	6

• 1989 Virginia Slims of Newport Draw